EP2260876B1 - Wasserabsorbens und herstellungsverfahren dafür - Google Patents
Wasserabsorbens und herstellungsverfahren dafür Download PDFInfo
- Publication number
- EP2260876B1 EP2260876B1 EP10183241.8A EP10183241A EP2260876B1 EP 2260876 B1 EP2260876 B1 EP 2260876B1 EP 10183241 A EP10183241 A EP 10183241A EP 2260876 B1 EP2260876 B1 EP 2260876B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- water
- absorbing resin
- water absorbent
- weight
- absorbent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000004132 cross linking Methods 0.000 claims description 47
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- XONPDZSGENTBNJ-UHFFFAOYSA-N molecular hydrogen;sodium Chemical compound [Na].[H][H] XONPDZSGENTBNJ-UHFFFAOYSA-N 0.000 description 1
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- RQAKESSLMFZVMC-UHFFFAOYSA-N n-ethenylacetamide Chemical compound CC(=O)NC=C RQAKESSLMFZVMC-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
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- ISWSIDIOOBJBQZ-UHFFFAOYSA-N phenol group Chemical group C1(=CC=CC=C1)O ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 150000003018 phosphorus compounds Chemical class 0.000 description 1
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- 239000001103 potassium chloride Substances 0.000 description 1
- 235000011164 potassium chloride Nutrition 0.000 description 1
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- 229940107700 pyruvic acid Drugs 0.000 description 1
- IUVKMZGDUIUOCP-BTNSXGMBSA-N quinbolone Chemical compound O([C@H]1CC[C@H]2[C@H]3[C@@H]([C@]4(C=CC(=O)C=C4CC3)C)CC[C@@]21C)C1=CCCC1 IUVKMZGDUIUOCP-BTNSXGMBSA-N 0.000 description 1
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- 229910000077 silane Inorganic materials 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000002002 slurry Substances 0.000 description 1
- AWUCVROLDVIAJX-GSVOUGTGSA-N sn-glycerol 3-phosphate Chemical compound OC[C@@H](O)COP(O)(O)=O AWUCVROLDVIAJX-GSVOUGTGSA-N 0.000 description 1
- GJPYYNMJTJNYTO-UHFFFAOYSA-J sodium aluminium sulfate Chemical compound [Na+].[Al+3].[O-]S([O-])(=O)=O.[O-]S([O-])(=O)=O GJPYYNMJTJNYTO-UHFFFAOYSA-J 0.000 description 1
- NNMHYFLPFNGQFZ-UHFFFAOYSA-M sodium polyacrylate Chemical compound [Na+].[O-]C(=O)C=C NNMHYFLPFNGQFZ-UHFFFAOYSA-M 0.000 description 1
- 229910052938 sodium sulfate Inorganic materials 0.000 description 1
- 235000011152 sodium sulphate Nutrition 0.000 description 1
- 239000002689 soil Substances 0.000 description 1
- 239000004334 sorbic acid Substances 0.000 description 1
- 235000010199 sorbic acid Nutrition 0.000 description 1
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- 238000005507 spraying Methods 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- CIOAGBVUUVVLOB-UHFFFAOYSA-N strontium atom Chemical compound [Sr] CIOAGBVUUVVLOB-UHFFFAOYSA-N 0.000 description 1
- 150000003462 sulfoxides Chemical class 0.000 description 1
- 239000012756 surface treatment agent Substances 0.000 description 1
- 239000000725 suspension Substances 0.000 description 1
- 210000004243 sweat Anatomy 0.000 description 1
- 230000002194 synthesizing effect Effects 0.000 description 1
- 229920002994 synthetic fiber Polymers 0.000 description 1
- 239000012209 synthetic fiber Substances 0.000 description 1
- 239000011975 tartaric acid Substances 0.000 description 1
- 235000002906 tartaric acid Nutrition 0.000 description 1
- CIHOLLKRGTVIJN-UHFFFAOYSA-N tert‐butyl hydroperoxide Chemical compound CC(C)(C)OO CIHOLLKRGTVIJN-UHFFFAOYSA-N 0.000 description 1
- FAGUFWYHJQFNRV-UHFFFAOYSA-N tetraethylenepentamine Chemical compound NCCNCCNCCNCCN FAGUFWYHJQFNRV-UHFFFAOYSA-N 0.000 description 1
- YLQBMQCUIZJEEH-UHFFFAOYSA-N tetrahydrofuran Natural products C=1C=COC=1 YLQBMQCUIZJEEH-UHFFFAOYSA-N 0.000 description 1
- 238000004448 titration Methods 0.000 description 1
- DVKJHBMWWAPEIU-UHFFFAOYSA-N toluene 2,4-diisocyanate Chemical compound CC1=CC=C(N=C=O)C=C1N=C=O DVKJHBMWWAPEIU-UHFFFAOYSA-N 0.000 description 1
- LDHQCZJRKDOVOX-UHFFFAOYSA-N trans-crotonic acid Natural products CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- 238000002834 transmittance Methods 0.000 description 1
- VPYJNCGUESNPMV-UHFFFAOYSA-N triallylamine Chemical compound C=CCN(CC=C)CC=C VPYJNCGUESNPMV-UHFFFAOYSA-N 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- BPSIOYPQMFLKFR-UHFFFAOYSA-N trimethoxy-[3-(oxiran-2-ylmethoxy)propyl]silane Chemical compound CO[Si](OC)(OC)CCCOCC1CO1 BPSIOYPQMFLKFR-UHFFFAOYSA-N 0.000 description 1
- YFHICDDUDORKJB-UHFFFAOYSA-N trimethylene carbonate Chemical compound O=C1OCCCO1 YFHICDDUDORKJB-UHFFFAOYSA-N 0.000 description 1
- XHGIFBQQEGRTPB-UHFFFAOYSA-N tris(prop-2-enyl) phosphate Chemical compound C=CCOP(=O)(OCC=C)OCC=C XHGIFBQQEGRTPB-UHFFFAOYSA-N 0.000 description 1
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 description 1
- NLVXSWCKKBEXTG-UHFFFAOYSA-N vinylsulfonic acid Chemical compound OS(=O)(=O)C=C NLVXSWCKKBEXTG-UHFFFAOYSA-N 0.000 description 1
- 230000004580 weight loss Effects 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- DGVVWUTYPXICAM-UHFFFAOYSA-N β‐Mercaptoethanol Chemical compound OCCS DGVVWUTYPXICAM-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J3/00—Processes of treating or compounding macromolecular substances
- C08J3/24—Crosslinking, e.g. vulcanising, of macromolecules
- C08J3/245—Differential crosslinking of one polymer with one crosslinking type, e.g. surface crosslinking
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61L—METHODS OR APPARATUS FOR STERILISING MATERIALS OR OBJECTS IN GENERAL; DISINFECTION, STERILISATION OR DEODORISATION OF AIR; CHEMICAL ASPECTS OF BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES; MATERIALS FOR BANDAGES, DRESSINGS, ABSORBENT PADS OR SURGICAL ARTICLES
- A61L15/00—Chemical aspects of, or use of materials for, bandages, dressings or absorbent pads
- A61L15/16—Bandages, dressings or absorbent pads for physiological fluids such as urine or blood, e.g. sanitary towels, tampons
- A61L15/42—Use of materials characterised by their function or physical properties
- A61L15/60—Liquid-swellable gel-forming materials, e.g. super-absorbents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J20/00—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof
- B01J20/22—Solid sorbent compositions or filter aid compositions; Sorbents for chromatography; Processes for preparing, regenerating or reactivating thereof comprising organic material
- B01J20/26—Synthetic macromolecular compounds
- B01J20/261—Synthetic macromolecular compounds obtained by reactions only involving carbon to carbon unsaturated bonds
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08F—MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVING CARBON-TO-CARBON UNSATURATED BONDS
- C08F20/00—Homopolymers and copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical or a salt, anhydride, ester, amide, imide or nitrile thereof
- C08F20/02—Monocarboxylic acids having less than ten carbon atoms, Derivatives thereof
- C08F20/04—Acids, Metal salts or ammonium salts thereof
- C08F20/06—Acrylic acid; Methacrylic acid; Metal salts or ammonium salts thereof
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
- B01J2220/00—Aspects relating to sorbent materials
- B01J2220/50—Aspects relating to the use of sorbent or filter aid materials
- B01J2220/68—Superabsorbents
-
- C—CHEMISTRY; METALLURGY
- C08—ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; COMPOSITIONS BASED THEREON
- C08J—WORKING-UP; GENERAL PROCESSES OF COMPOUNDING; AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F, C08G or C08H
- C08J2333/00—Characterised by the use of homopolymers or copolymers of compounds having one or more unsaturated aliphatic radicals, each having only one carbon-to-carbon double bond, and only one being terminated by only one carboxyl radical, or of salts, anhydrides, esters, amides, imides, or nitriles thereof; Derivatives of such polymers
Claims (14)
- Wasserabsorbierendes Mittel, das wasserabsorbierende Harzteilchen umfasst, die oberflächenvernetzt sind und hergestellt werden aus einem wasserabsorbierenden Harz, das eine vernetzte Struktur aufweist, die hergestellt wird durch Polymerisieren eines Monomers, das mindestens Acrylsäure und/oder deren Salz einschließt, wobei das wasserabsorbierende Mittel aufweist:- ein Absorptionsvermögen gegen Druck für 0,9-gewichtsprozentige Kochsalzlösung (AAPs) von 20 g/g oder mehr,- ein Zentrifugenrückhaltekapazität-Absorptionsvermögens für 0,9-gewichtsprozentige Kochsalzlösung (CRCs), das nicht weniger als 29 g/g, aber weniger als 39 g/g ist,
und- 90 Gewichtsprozent oder mehr der Teilchen weisen einen Durchmesser von weniger als 850 µm, aber nicht weniger als 150µm auf,
dadurch gekennzeichnet, dass- das wasserabsorbierende Mittel eine logarithmische Standardabweichung (σζ) der Teilchengrößenverteilung in einem Bereich von 0,25 bis 0,45 aufweist;
das wasserabsorbierende Mittel einen chemischen Vernetzungsindex von 170 oder mehr aufweist, wobei der chemische Vernetzungsindex dargestellt wird durch die Formel:
- die Oberflächenvernetzung des wasserabsorbierenden Harzes zu einem solchen Grad ausgeführt worden ist, dass die Differenz zwischen dem wasserabsorbierenden Harz und den wasserabsorbierenden Harzteilchen hinsichtlich des CRCs 3 g/g oder mehr ist. - Wasserabsorbierendes Mittel gemäß Anspruch 1, dadurch gekennzeichnet, dass das wasserabsorbierende Mittel einen chemischen Vernetzungsindex von 175 oder mehr aufweist.
- Wasserabsorbierendes Mittel gemäß Anspruch 1 oder 2, dadurch gekennzeichnet, dass das wasserabsorbierende Mittel ein Phosphoratom enthält.
- Wasserabsorbierendes Mittel gemäß Anspruch 1, 2 oder 3, dadurch gekennzeichnet, dass das wasserabsorbierende Mittel eine Salzlösungsfließleitfähigkeit (SFC) in einem Bereich von 30 bis 3000 (10-7 ·cm3·s·g-1) oder mehr aufweist.
- Wasserabsorbierendes Mittel gemäß einem der Ansprüche 1 bis 4, dadurch gekennzeichnet, dass das wasserabsorbierende Mittel eine Salzlösungsfließleitfähigkeit (SFC) in einem Bereich von 100 bis 250 (10-7·cm3·s·g-1) oder mehr aufweist.
- Wasserabsorbierendes Mittel gemäß einem der Ansprüche 1 bis 5, dadurch gekennzeichnet, dass das wasserabsorbierende Mittel einen Flüssigkeitspermeabilitätsverbesserer (F) umfasst.
- wasserabsorbierendes Mittel gemäß Anspruch 6, dadurch gekennzeichnet, dass der Flüssigkeitspermeabilitätsverbesserer (F) eine mehrwertigen Metall Verbindung ist.
- Verfahren zum Herstellen eines wasserabsorbierenden Mittels, das wasserabsorbierende Harzteilchen enthält, die oberflächenvernetzt sind und aus einem wasserabsorbierenden Harz hergestellt werden, das durch vernetzende Polymerisation eines Monomers, das Acrylsäure und/oder deren Salz einschließt, hergestellt wird,
dadurch gekennzeichnet, dass
die vernetzende Polymerisation eine siedende Polymerisation ist, die in der Gegenwart eines wasserlöslichen Kettenübertragungsmittels von 0,001 mol% bis 10 mol% hinsichtlich des durch die siedende Polymerisation zu polymerisierenden Monomers ausgeführt wird; und
die Oberflächenvernetzung des wasserabsorbierenden Harzes zu einem solchen Grad ausgeführt wird, dass die Differenz zwischen dem wasserabsorbierenden Harz und den wasserabsorbierenden Harzteilchen hinsichtlich des CRCs 3 g/g oder mehr ist. - Verfahren gemäß Anspruch 8, dadurch gekennzeichnet, dass das wasserabsorbierende Harz eine CRCs in einem Bereich von 28 bis 40 (g/g) und einen Quelldruck der Gelschicht (SPGL (B)) von 40,0 (kdyne/cm2) oder mehr aufweist.
- Verfahren gemäß einem der Ansprüche 8 oder 9, dadurch gekennzeichnet, dass das wasserabsorbierende Harz oberflächenvernetzt wird, bis das wasserabsorbierende Harz eine Salzlösungsfließleitfähigkeit (SFC) von 40 (10-7·cm3·s·g-1) oder mehr aufweist, und dann ein Flüssigkeitspermeabilitätsverbesserer zu dem wasserabsorbierenden Harz zugegeben wird.
- Verfahren gemäß einem der Ansprüche 8 bis 10, dadurch gekennzeichnet, dass- die Teilchen eine solche Teilchengrößenverteilung aufweisen, dass 95 Gewichtsprozent bis 100 Gewichtsprozent der Teilchen einen Durchmesser von weniger als 850 µm, aber nicht weniger als 106 µm aufweisen, wobei die Teilchengrößenverteilung durch JIS-Standardsieb gemessen wird;
und- eine logarithmische Standardabweichung (σζ) der Teilchengrößenverteilung in einem Bereich von 0,25 bis 0,45 ist. - Verfahren gemäß einem der Ansprüche 8 bis 11, dadurch gekennzeichnet, dass das Verfahren weiteres Zugeben eines Flüssigkeitspermeabilitätsverbesserers von 0,001 Gewichtsteilen bis 5 Gewichtsteilen hinsichtlich 100 Gewichtsteilen der Teilchen umfasst.
- Verfahren gemäß einem der Ansprüche 8 bis 12, dadurch gekennzeichnet, dass jedes Gewichtsprozent des Flüssigkeitspermeabilitätsverbesserers zu den oberflächenvernetzten wasserabsorbierenden Harzteilchen die Salzlösungsfließleitfähigkeit (SFC) mit einer Rate von 3,5-fach oder mehr steigert.
- Verfahren gemäß einem der Ansprüche 10, 12 und 13, dadurch gekennzeichnet, dass der Flüssigkeitspermeabilitätsverbesserer mindestens eines von einem anorganischen Pulver oder einer mehrwertigen Metallverbindung enthält.
Applications Claiming Priority (4)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003329110 | 2003-09-19 | ||
| JP2003329109 | 2003-09-19 | ||
| EP04773399.3A EP1677845B2 (de) | 2003-09-19 | 2004-09-17 | Wasserabsorbens und herstellungsverfahren dafür |
| PCT/JP2004/014015 WO2005027986A1 (en) | 2003-09-19 | 2004-09-17 | Water absorbent and producing method of same |
Related Parent Applications (3)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04773399.3A Division-Into EP1677845B2 (de) | 2003-09-19 | 2004-09-17 | Wasserabsorbens und herstellungsverfahren dafür |
| EP04773399.3A Division EP1677845B2 (de) | 2003-09-19 | 2004-09-17 | Wasserabsorbens und herstellungsverfahren dafür |
| EP04773399.3 Division | 2004-09-17 |
Publications (3)
| Publication Number | Publication Date |
|---|---|
| EP2260876A2 EP2260876A2 (de) | 2010-12-15 |
| EP2260876A3 EP2260876A3 (de) | 2011-04-13 |
| EP2260876B1 true EP2260876B1 (de) | 2021-08-04 |
Family
ID=34380341
Family Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04773399.3A Active EP1677845B2 (de) | 2003-09-19 | 2004-09-17 | Wasserabsorbens und herstellungsverfahren dafür |
| EP10183241.8A Active EP2260876B1 (de) | 2003-09-19 | 2004-09-17 | Wasserabsorbens und herstellungsverfahren dafür |
Family Applications Before (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| EP04773399.3A Active EP1677845B2 (de) | 2003-09-19 | 2004-09-17 | Wasserabsorbens und herstellungsverfahren dafür |
Country Status (8)
| Country | Link |
|---|---|
| US (2) | US7803880B2 (de) |
| EP (2) | EP1677845B2 (de) |
| JP (4) | JP4920183B2 (de) |
| KR (1) | KR100819613B1 (de) |
| CN (1) | CN100391548C (de) |
| BR (1) | BRPI0414531A (de) |
| TW (1) | TWI308570B (de) |
| WO (1) | WO2005027986A1 (de) |
Families Citing this family (76)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
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| TW200720347A (en) * | 2005-09-30 | 2007-06-01 | Nippon Catalytic Chem Ind | Water-absorbent agent composition and method for manufacturing the same |
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Also Published As
| Publication number | Publication date |
|---|---|
| JP2011218357A (ja) | 2011-11-04 |
| JP5090571B2 (ja) | 2012-12-05 |
| EP2260876A2 (de) | 2010-12-15 |
| EP2260876A3 (de) | 2011-04-13 |
| BRPI0414531A (pt) | 2006-11-07 |
| TWI308570B (en) | 2009-04-11 |
| US20100308263A1 (en) | 2010-12-09 |
| JP4932954B2 (ja) | 2012-05-16 |
| EP1677845B2 (de) | 2016-06-22 |
| JP4920183B2 (ja) | 2012-04-18 |
| JP2012161788A (ja) | 2012-08-30 |
| JP2012161789A (ja) | 2012-08-30 |
| KR20060072148A (ko) | 2006-06-27 |
| CN100391548C (zh) | 2008-06-04 |
| KR100819613B1 (ko) | 2008-04-07 |
| CN1856331A (zh) | 2006-11-01 |
| EP1677845A1 (de) | 2006-07-12 |
| US8497226B2 (en) | 2013-07-30 |
| EP1677845B1 (de) | 2011-12-14 |
| TW200523281A (en) | 2005-07-16 |
| US7803880B2 (en) | 2010-09-28 |
| JP2005111474A (ja) | 2005-04-28 |
| WO2005027986A1 (en) | 2005-03-31 |
| US20070123658A1 (en) | 2007-05-31 |
| JP5090572B2 (ja) | 2012-12-05 |
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